133253420 has 12 divisors (see below), whose sum is σ = 279832224. Its totient is φ = 53301360.

The previous prime is 133253387. The next prime is 133253443. The reversal of 133253420 is 24352331.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3331316 + ... + 3331355.

It is an arithmetic number, because the mean of its divisors is an integer number (23319352).

Almost surely, 2^133253420 is an apocalyptic number.

133253420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133253420 is an abundant number, since it is smaller than the sum of its proper divisors (146578804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133253420 is a wasteful number, since it uses less digits than its factorization.

133253420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6662680 (or 6662678 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 133253420 is about 11543.5445163087. The cubic root of 133253420 is about 510.7708706297.

The spelling of 133253420 in words is "one hundred thirty-three million, two hundred fifty-three thousand, four hundred twenty".